Grain-drill.



P. BROMAN.

GRAIN DRILL.

APPLICATION FILED our. 5, 1911.

Patented Apr; 9, 1912.

NITED STATES PATENT OFFICE.

PETER BROMAN, OF BEAVER DAM, WISCONSIN, ASSIGNOR TO BEAVER DAM MANU-FACTURING COMPANY, OF BEAVER DAM, WISCONSIN, A CORPORATION OF WISCONSIN.

To all whom it may concern:

Be it known that I, PETER BROMAN, a citizen of the United States,residing at Beaver Dam, in the county of Dodge and State of Wisconsin,have invented certain new and useful Improvements in Grain- Drills, ofwhich the following is a specification.

One of the objects of this invention is the provision of an associatedconcavo-convex furrow opening disk, a boot or seed duct to convey thegrain to the ground, and a combination furrow opener and scraper for theconvex side of the disk, so constructed and positioned that it isintegral with one of a number of sheet metal parts or sections of whichthe boot or seed conduit is formed, and is so related to the disk thatit not only assists in opening the furrow, but also keeps the convexface of the disk clean and free from weeds and trash, and in additionholds the furrow open a sufficient length of time to permit the properdischarge of the grain into the same. In order to assist in the properdelivery of the seed to the furrow while the same is fully open, thelower or bottom end of the seed conduit or boot is curved forwardslightly and the discharge of the seed through this lower curved endwhile the furrow is kept open by the blade or scraper results in theproper and unhampered delivery of the seeds or kernels into the bottomof the furrow without danger of the ground or earth partially fallinginto the furrow before the seeds reach the same. In similar devices asheretofore constructed, the scraper or blade was not positioned toaccomplish this result of holding the furrow open to the best advantageand I have found that to secure this function it is desirable instead ofhaving the blade or scraper project forwardly and upwardly in a curvefrom the toe of the boot that it is better to have the same extendupwardly substantially vertically or possibly inclined slightlyrearwardly. In other words, in my improved construction I bring thedelivery end of the boot and the main body of the scraper relativelyclose together to secure the maintenance of the furrow open a sufficientlength of time for the effective delivery of the seeds or kernelsthereto.

As indicated above, the boot or seed conduit is preferably made of sheetsteel in two parts riveted or otherwise secured together,

GRAIN-DRILL.

Specification of Letters Patent.

Application filed October 5, 1911.

Patented Apr. 9, 1912.

Serial No. 653,078.

one of such sheet metal sections having integral therewith the furrowopening and disk scraping blade. Because of the resiliency which such asheet metal blade possesses, it can automatically and readily conform tothe convex curvature of the disk and will be sufficiently elastic topermit a wabbly motion of the disk which occasionally happens. Sincesuch a boot and furrow opening scraper will take a high polish, it willconsequently travel easily through the soil, the blade and toe of theboot forming a land-side for temporarily holding the furrow open, and inaddition, owing to the thinness of the metal employed, the unobstructedspace between the grain drills in a gang device of this character can beconsiderably increased.

In order that those skilled in this art may have a full and clearcomprehension of this invention, I have illustrated a desirable embodiment of the same in the figures of the accompanying drawing whichforms a part of this specification, and to which reference should be hadin connection with the following detailed description of the structure:

In these drawings: Figure 1 illustrates a fragment of a grain drillembodying this invention, the concave disk being viewed from its convexside. Fig. 2 is a rear elevation of the structure shown in Fig. 1. Fig.3 is a plan View of the structure shown in Fig. 1. Fig. 1 is ahorizontal section on the broken line 4L4 of Fig. 1 on an enlargedscale, and Fig. 5 is a fragmentary elevation of the lower portion of theboot and scraper as viewed from the right hand of Fig. 1, thisillustration being also on an enlarged scale.

Referring to this drawing, it will be noticed that the usualconcavo-convex furrow opening disk 10 is rotatably mounted in a suitablebearing at the lower end of the depending arm 11, fastened at its upperend by means of bolts 12, 12 to a drag or draft bar 13, the rear portiononly of which is illustrated in the figures and is shown as having acurved contour. As is customary, this concave disk is angularly disposedwith relation to the lengthwise dimension of the drag bar to effect andperform its furrow opening function, as is clearly indicated in composedof two sheet-metal, (preferably steel) sections or parts riveted orotherwise secured together to form the seed-duct or conduit, each partof the boot being approximately of semi-circular shape in cross-section.The outermost steel section 15 of the boot has at its upper end a curvedforwardly projecting attachment ear or lug 16 lying at one side of therear end of the drag-bar 13 and fastened thereto by means of the bolts14, 1 1, which also secure to the dragbar the corresponding attachmentear 17 of the other sheet-metal boot-section 18. Each of these ears 16and 17 has along its top and bottom edges laterally turned flanges l9and 20 overlapping the top and bottom edges of the drag-bar 13 to assistin maintaining the boot or seed-duct in proper position. Each of thesections 15 and 18 has at the rear of the boot outstanding ears 21 and22 riveted together at 23 and 24 to maintain the two halves of theseed-duct or conduit in proper assembled relation. The outer section 15at its lower end extends forwardly in the form of a substantially flatportion 25 adjacent to the lower edge of the disk 10 and constitutingthe toe of the boot.

As is clearly shown in Fig. 5, the lower portions of the two steelsections 15 and 18 of the boot are flattened and held together by rivets26, 26 so that the toe 25 of the boot is composed only of onesheet-metal section of the boot, preferably, though not necessarily, theouter one. In order that the seeds or kernels descending into boot 15may be delivered to the ground well forwardly, the lower portion of theconduit of the tube is curved or extended forwardly as is indicated bythe junction line 27 and the opening 28 at the bottom of the bootthrough which the kernels are'discharged into the furrow. In thisconstruction therefore, the seeds or kernels are dropped into the furrowfarther forward than has heretofore been customary, in order that thefurrow may not partially close before the seeds are properly deliveredthereto. The toe 25 of the boot has integral therewith an upwardlyextended blade or scraper 29'which is substantially vertically arranged,or which may in fact, incline rearwardly to some 'extent,'this bladebeing curved longitudinally, as shown for example in Fig; 5, so as toclosely follow the curvature of the convex fac'e'of the disk againstwhich it bears 'andwith which it 00- operates to perform the functionsof assisting in the-opening of the furrow, to keep the disk clean, andto hold the furrow open until the seeds or kernels have been properlydeposited in the bottom thereof. If such a blade or scraper 29 projectsforwvardly and upwardly rather than directly upwardly or slightlyrearwardly from the toe of the boot, it will not hold the furrow open asWell as in the present instance so extends rearwardly from the lower endof the blade or scraper in a direction substan tially parallel with theline of draft and forms a land-side acting in conjunction with the bladeor scraper to maintain the fur ow open until the seeds are planted,which is facilitated and hastened in this device because of the forwardinclination o-r curvature of the lower end of the passage in the boot.

From this description and illustration it should be clear that in thisdevice the boot is attached to a draw bar extended parallel with theline of draft and directly over the center of the soil-cutting concavedisk, the sheet metal steel boot made in sections being attached to therear end of such draw bar as has been indicated above. In addition, itshould be noted that when the blade or seed conduit is made of steel itwill have sufficient resiliency and elasticity to follow the curvedshape of the disk and maintain proper contact therewith, even though thedisk may have a wabbly motion, and furthermore, such a scraper and bootwill take on a comparatively high polish and therefore run through thesoil easily forming a land-side which travels against the unplowed land.Because of the relative thinness of the parts of this construction ascompared with the older devices of the prior art, an increased space canbe secured between the disks, re sulting in a more favorable and advantageous planting of the seed.

While I have herein described one particular'embodiment of thisinvention in detail, I wish to have it understood that the invention isnot in any way limited or restricted to this particular embodiment,because many minor mechanical changes may be made in such a constructionwithout departure from the substance of the invention and without thesacrifice of any of its material benefits and advantages.

I claim:

1. In a grain drill, the combination of a suitably-supported rotaryfurrow-opening disk, a boot composed of a plurality of sheetmetalsections secured together, and a bladelike disk-scraper co-aoting withsaid disk and formed integral with one of the sheetmetal sections ofsaid boot, substantially as described.

2. In a grain drill, the combination of a suitably-supported rotaryfurrow-opening disk, a boot composed of a plurality of sheetmetalsections secured together, and a blade like disk-scraper co-acting withsaid disk, formed integral with one of the sheet-metal sections of theboot, and having a scraping edge along a substantially vertical radiusof said disk, substantially as described.

3. In a grain drill, the combination of a suitably-supported rotaryconcaVo-convex furrow-opening disk, a boot composed of a plurality ofsheet-metal sections secured together, and a blade-like disk-scraperco-acting with the convex face of the disk and formed integral with oneof the sheet-metal sections of the boot, substantially as described.

4. In a grain drill, the combination of a suitably-supported rotaryconcavo-convex furrow-opening disk, a boot composed of a plurality ofsheet-metal sections secured together, and a blade-like disk-scraperco-acting with the convex side of the disk, formed integral with one ofthe sheet-metal sections of the boot, and having a scraping edge along asubstantially vertical radius of said disk, substantially as described.

5. In a grain drill, the combination of a suitably-supported rotaryconcavo-convex furrow-opening disk disposed angularly with relation tothe direction of travel of the drill, a boot composed of a plurality ofsheet-metal sections secured together and disposed rearwardly of saiddisk, and a flexible blade-like scraper co-acting with the convex sideof said disk and formed integral with one of the sheet-metal sections ofthe boot, the scraper extending upwardly from the toe of the boot,substantially as described.

6. In a grain drill, the combination of a suitably-supported rotaryconcavo-convex furrow-opening disk, disposed angularly with relation tothe direction of travel of the drill, a boot composed of a plurality ofsheet-metal sections secured together and disposed rearwardly of saiddisk, and a flexible blade-like scraper co-acting with the convex sideof said disk and formed integral with one of the sheet-metal sections ofthe boot, said scraper extending upwardly from the toe of the boot andhaving a diskscraping edge along a substantially vertical radius of saiddisk, substantially as described.

7. In a grain drill, .the combination of a suitably-supported rotaryconcavo-convex furrow-opening disk disposed angularly with relation tothe direction of travel of the drill, a boot disposed rearwardly of saiddisk, and a flexible blade-like scraper co-acting with the convex sideof the disk and formed integral with the boot, said scraper extendingupwardly from the toe of the boot and having a scraping edge along asubstantially vertical radius of said disk, substantially as described.

8. In a grain drill, the combination of a suitablysupported rotaryconcavo-convex furrow-opening disk, a boot disposed rearwardly of saiddisk, and a flexible blade-like scraper co-acting with the convex sideof said disk and rigidly secured to said boot, said scraper extendingupwardly from the toe of the boot and having a disk-scraping edge alonga substantially vertical radius of said disk, substantially asdescribed.

9.In a grain drill, the combination of a suitably-supported rotaryconcavo-convex furrow-opening disk disposed angularly with relation tothe direction of travel of the drill, a boot having a passagetherethrough, the lower end of which is inclined forwardly, and aflexible blade-like scraper integral with said boot co-acting with theconvex side of the disk and extending upwardly from the toe of the boot,said scraper having disk-scraping edge along a substantially verticalradius of said disk, substantially as described.

10. In a grain drill, the combination of a suitably-supported rotaryconcavo-convex furrow-opening disk, a boot composed of a plurality ofsheet-metal sections secured to gether and having a passagetherethrough, the lower end of which passage is inclined forwardly, anda flexible blade-like scraper integral with one of the sheet-metalsections of the boot and co-acting with the convex side of the disk,said scraper extending upwardly from the toe of the boot and having adisk-scraping edge along a substantially vertical radius of said disk,substantially as described.

PETER BROMAN. lVitnesses:

EDWARD BEIOI-IL, H. A. BIRD.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

